System Sizing Guidelines for Integrity Virtual Machines Deployment -- Hardware Consolidation with Integrity Virtual Machines

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Deploying Consolidated Workloads
Response times and bandwidth alone are not enough to represent native performance. Workloads
executing on virtual machines share the same hardware. In order to understand the impact of
workload consolidation, it is critical to understand the way that the applications use hardware
resources.
Qualitative Utilization Information and Consolidation
If utilization data for resources (other than the CPU) is available only in a qualitative form, avoid
consolidating more than one or two workloads with high utilization. It is best to combine poorly
quantified workloads with workloads you know have a low utilization for the same resource. For
example, if workloads A and B have high network I/O utilization, and workloads C, D, E, and F
have low network I/O utilization, consolidate workload A with workloads C and D on one physical
server, and consolidate workloads B, E and F on another physical server.
Performance problems are more likely when you consolidate multiple workloads with a medium or
high utilization of the same resource.